You're using air dates and assumptions about stardates to guess lengths of time.
Umm, I'm the one who pointed out that you can't assume the in-story timing corresponds to the real-world timing -- scroll up and read the first paragraph in post #107. My point is that your assumptions are no better. You're trying to use calendar years as "evidence" for when an anniversary falls, and that's a fundamental mismatch of scale. People routinely use "three years" to mean anything from two and a half to three and a half years, or an even wider spread if they're going by calendar years. So it's far too imprecise to prove anything about an exact, to-the-day interval. I'm not "assuming" an answer is correct, I'm saying we don't have clear enough evidence to assume any answer is correct. Sometimes the only intelligent answer is "We just don't know."
Personally, I choose to side with the amount of time that is stated outright on screen. (Sisko's log, I mean.) Maybe that's my own bias, I've never hewn to stardates.
And as I said in post #107, I'd be willing to agree with you if not for the show's general practice to assume that the number of years elapsed in-story corresponds to the number of years in real life. When there's a significant exception like "Second Sight," it makes it hard to reconcile. It's more a question of internal consistency than anything else.